Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: shelly (user goal)
rejecting: shelly-1.6.8.1, shelly-1.6.8, shelly-1.6.7, shelly-1.6.6,
shelly-1.6.5, shelly-1.6.4.1, shelly-1.6.4, shelly-1.6.3.4, shelly-1.6.3.3,
shelly-1.6.3.2, shelly-1.6.3.1, shelly-1.6.3, shelly-1.6.2.5, shelly-1.6.2.4,
shelly-1.6.2.3, shelly-1.6.2.2, shelly-1.6.2.1, shelly-1.6.2, shelly-1.6.1.2,
shelly-1.6.1.1, shelly-1.6.1, shelly-1.6.0.1, shelly-1.6.0, shelly-1.5.7,
shelly-1.5.6, shelly-1.5.5, shelly-1.5.4.1, shelly-1.5.4, shelly-1.5.3.2,
shelly-1.5.3.1, shelly-1.5.2, shelly-1.5.1.1, shelly-1.5.1, shelly-1.5.0.1,
shelly-1.4.4.2, shelly-1.4.4.1, shelly-1.4.4, shelly-1.4.3.1, shelly-1.4.3,
shelly-1.4.2, shelly-1.4.1, shelly-1.4.0.2, shelly-1.4.0.1, shelly-1.3.2,
shelly-1.3.1, shelly-1.3.0.7, shelly-1.3.0.6, shelly-1.3.0.5, shelly-1.3.0.4,
shelly-1.3.0.3, shelly-1.3.0.2, shelly-1.3.0.1, shelly-1.3.0.0,
shelly-1.2.0.0, shelly-1.1.0.0, shelly-1.0.0.0, shelly-0.15.4.1,
shelly-0.15.4, shelly-0.15.3.3, shelly-0.15.3.2, shelly-0.15.3.1,
shelly-0.15.3, shelly-0.15.2, shelly-0.15.1, shelly-0.15.0, shelly-0.14.3,
shelly-0.14.2.3, shelly-0.14.2.2, shelly-0.14.2.1, shelly-0.14.2,
shelly-0.14.1, shelly-0.14.0.1, shelly-0.14, shelly-0.13.5.1, shelly-0.13.5,
shelly-0.13.4, shelly-0.13.3, shelly-0.13.2.1, shelly-0.13.2, shelly-0.13.1,
shelly-0.13.0.1, shelly-0.13, shelly-0.12.2, shelly-0.12.1.1, shelly-0.12.1,
shelly-0.12.0.2, shelly-0.12.0.1, shelly-0.12, shelly-0.11, shelly-0.10.0.1,
shelly-0.10, shelly-0.9.7.3, shelly-0.9.7.2, shelly-0.9.7.1, shelly-0.9.7,
shelly-0.9.6, shelly-0.9.5.1, shelly-0.9.5, shelly-0.9.4.2, shelly-0.9.4.1,
shelly-0.9.3, shelly-0.9.2, shelly-0.9.0, shelly-0.8.0.2, shelly-0.8.0.1,
shelly-0.7.1, shelly-0.7, shelly-0.6, shelly-0.5.1, shelly-0.5.0,
shelly-0.4.1, shelly-0.4, shelly-0.3.1, shelly-0.3.0.2, shelly-0.3.0.1,
shelly-0.3.0 (constraint from user target requires ==1.5.3)
trying: shelly-1.5.3
trying: base-4.9.0.0/installed-4.9... (dependency of shelly-1.5.3)
trying: transformers-0.5.2.0/installed-0.5... (dependency of shelly-1.5.3)
next goal: monad-control (dependency of shelly-1.5.3)
rejecting: monad-control-1.0.1.0, monad-control-1.0.0.5,
monad-control-1.0.0.4, monad-control-1.0.0.3, monad-control-1.0.0.2,
monad-control-1.0.0.1, monad-control-1.0.0.0 (conflict: shelly =>
monad-control>=0.3.2 && <0.4)
rejecting: monad-control-0.3.3.1, monad-control-0.3.3.0 (conflict:
transformers==0.5.2.0/installed-0.5..., monad-control => transformers>=0.2 &&
<0.5)
rejecting: monad-control-0.3.2.3, monad-control-0.3.2.2, monad-control-0.3.2.1
(conflict: transformers==0.5.2.0/installed-0.5..., monad-control =>
transformers>=0.2 && <0.4)
rejecting: monad-control-0.3.2 (conflict: base==4.9.0.0/installed-4.9...,
monad-control => base>=3 && <4.7)
rejecting: monad-control-0.3.1.4, monad-control-0.3.1.3,
monad-control-0.3.1.2, monad-control-0.3.1.1, monad-control-0.3.1,
monad-control-0.3.0.1, monad-control-0.3, monad-control-0.2.0.3,
monad-control-0.2.0.2, monad-control-0.2.0.1, monad-control-0.2,
monad-control-0.1 (conflict: shelly => monad-control>=0.3.2 && <0.4)
Dependency tree exhaustively searched.